mirrors/SDL
1
0
Fork 0
mirror of https://github.com/libsdl-org/SDL.git synced 2026-07-18 06:51:11 +00:00
Code Issues Packages Projects Releases Wiki Activity

Avoid RLE for software render alpha subrect copies (#15982)

Browse Source
This commit is contained in:
meta-legend
2026-07-17 17:09:42 -05:00
committed by GitHub
parent df7b937361
commit ac9ef17bcc
1 changed files with 12 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
src/render/software/SDL_render_sw.c
View File

@@ -664,7 +664,7 @@ static bool SW_QueueGeometry(SDL_Renderer *renderer, SDL_RenderCommand *cmd, SDL
return true;
}
static void PrepTextureForCopy(const SDL_RenderCommand *cmd, SW_DrawStateCache *drawstate)
static void PrepTextureForCopy(const SDL_RenderCommand *cmd, SW_DrawStateCache *drawstate, const SDL_Rect *srcrect)
{
const Uint8 r = drawstate->color.r;
const Uint8 g = drawstate->color.g;
@@ -674,6 +674,14 @@ static void PrepTextureForCopy(const SDL_RenderCommand *cmd, SW_DrawStateCache *
SDL_Texture *texture = cmd->data.draw.texture;
SDL_Surface *surface = (SDL_Surface *)texture->internal;
if (SDL_SurfaceHasRLE(surface) &&
srcrect &&
texture->access == SDL_TEXTUREACCESS_STATIC &&
SDL_ISPIXELFORMAT_ALPHA(surface->format) &&
(srcrect->x != 0 || srcrect->y != 0 || srcrect->w != surface->w || srcrect->h != surface->h)) {
SDL_SetSurfaceRLE(surface, false);
}
// !!! FIXME: we can probably avoid some of these calls.
SDL_SetSurfaceColorMod(surface, r, g, b);
SDL_SetSurfaceAlphaMod(surface, a);
@@ -857,7 +865,7 @@ static bool SW_RunCommandQueue(SDL_Renderer *renderer, SDL_RenderCommand *cmd, v
SetDrawState(surface, &drawstate);
PrepTextureForCopy(cmd, &drawstate);
PrepTextureForCopy(cmd, &drawstate, srcrect);
// Apply viewport
if (drawstate.viewport && (drawstate.viewport->x || drawstate.viewport->y)) {
@@ -912,7 +920,7 @@ static bool SW_RunCommandQueue(SDL_Renderer *renderer, SDL_RenderCommand *cmd, v
{
CopyExData *copydata = (CopyExData *)(((Uint8 *)vertices) + cmd->data.draw.first);
SetDrawState(surface, &drawstate);
PrepTextureForCopy(cmd, &drawstate);
PrepTextureForCopy(cmd, &drawstate, &copydata->srcrect);
// Apply viewport
if (drawstate.viewport &&
@@ -943,7 +951,7 @@ static bool SW_RunCommandQueue(SDL_Renderer *renderer, SDL_RenderCommand *cmd, v
GeometryCopyData *ptr = (GeometryCopyData *)verts;
PrepTextureForCopy(cmd, &drawstate);
PrepTextureForCopy(cmd, &drawstate, NULL);
// Apply viewport
if (drawstate.viewport && (drawstate.viewport->x || drawstate.viewport->y)) {